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Finding the Fourth Proportional to 329,115.57, 454,179.50 and 178,212.57

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Solution

The fourth proportional to 329,115.57, 454,179.50 and 178,212.57 is: 245,933.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,115.57 : 454,179.50 = 178,212.57 : x
  2. Step 2: Convert to fraction form
    329,115.57/454,179.50 = 178,212.57/x
  3. Step 3: Cross multiply
    329,115.57x = 454,179.50 × 178,212.57
  4. Step 4: Simplify right side
    329,115.57x = 80,940,495,936.32
  5. Step 5: Solve for x
    x = 80,940,495,936.32/329,115.57
  6. Step 6: Final answer
    x = 245,933.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.